chore: drop the namespaces to resolve kustomize conflicts

[christian-heusel]

Link: kubeflow/manifests#3430 (comment)

Todo:

• check if this breaks any tests

[christian-heusel]

/ok-to-test

[andyatmiami]

/lgtm
/approve

Based on the comment by @thesuperzapper here:

• kubeflow/manifests#3430 (comment)

I can confirm this PR accomplishes its stated goal.

I ran the app via tilt and confirmed (unsurprisingly) that everything still works locally with these namespace resources being removed.

This should also help me when I (eventually) finish documenting deployment instructions here:

• https://github.com/andyatmiami/kubeflow-notebooks/wiki/Deploying-Kubeflow-Notebooks-2.0-%5BDEVELOPMENT-ONLY%5D#31---prepare-manifests

As I imagine this same issue was going to fail the (very outdated) instructions as written 💯

[ederign]

/approve
/lgtm

[google-oss-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: andyatmiami, ederign

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